Lamp adapted for use in brooders, incubators, and similar structures.



1 H. A. NOURSB. LAMP ADAPTED FOR USE IN BROODERS, INOUBATORS, ANDSIMILAR STRUCTURES.

APPLICATION FILED HERBS, 1910.

988,958. Patented Apr. 4, 1911.

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UNITED STATES PATENT OFFICE,

HAROLD A. NOURSE, OF ST. PAUL, MINNESOTA.

LAMP ADAPTED FOR USE IN BROODERS, INCUBATORS, AND SIMILAR STRUCTURES.

Specification of Letters Patent.

. atentod Apr. 41, 1911.

Original application filed October 12, 1908, Serial No. 457,263. Dividedand this application filed February 28, 1910. Serial No. 546,470.

To all whom it may concern:

Be it known that I, Harrow A. No'unsn, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented new and useful Improvements in Lamps Adapted for Use inBreeders, Incubators, and Similar Structures, of which the following isa specification.

My invention relates to improvements in lamps adapted for use inbreeders, incubators and similar structures.

It has for its object a lamp which shall be safe, simple inconstruction, and readily adjusted to the breeder or incubator heatingdrum.

In the accompanying drawings forming part of this specification, Figure1 is an clevation, partly in section, showing the lamp in place under abreeder. Fig. 2 is a vertical, central section of the lamp and itsconnection with the heating drum of the breeder, and Fig. 3 is a crosssection of Fig. 2 taken on the line y y.

The oil reservoir 2, the base of which is of ordinary construction, isprovided with a double walled top. The walls 3 and 4 inclose an airchamber 5, through which the draft for the lamp is secured by means ofthe opening 6. A wind shield 7 is attached to the top wall 4, for thepurpose of preventing a direct current of wind into the air chamber.This air chamber opens at a point opposite the opening 6, into theinclosed air space 8, beneath the lower floor of the incubator orbrooder. The air chamber 5 serves a double purpose, viz: to keep the oilin the reservoir of the lamp cool and by warming the air circulatingthrough it, aids in keeping the floor of the breeder or incubator at aproper temperature. Air to support combustion is fed to the flame fromthe air space 8, between the brackets 9, supporting the chimney ring 10.Oil is introduced into the reservoir of the lamp through the screwcapped tube 11, which extends into the reservoir through the walls 3 and4. The chimney 12 may be attached to the lamp in the usual way. Tosecure a safe and convenient connection be tween the lamp chimney andthe heating drum 13, the chimney 12 is formed with an extension 14 forabout onehalf of its circumference. This extension fits snugly about thelower end of the heatin drum 13. Said end of the drum is furnishec witha depending flange 16, adapted to make a close conncction between theflue and the inner and shorter portion of the lamp chimney, and toreceive the inner edge of the latter. This arrangement, while making iteasy to place and remove the lamp, furnishes a sub stantially tightjoint between the lamp chimney and the heating drum. A ver ticalextension 17 is provided on one side of the reservoir to close theopening through which the lamp and its chimney are inserted under thebrooder. A support 18 is provided for the lamp upon which the lamp restswhen in the breeder, and by sliding the lamp in upon this support, thecoupling between the lamp chimney and heating drum is made, while theopening for the insertion of the lamp is closed by the verticalextension 17. Both this extension and the lamp chimney are provided withglass or mica covered openings 19, adapted to permit the inspection ofthe flame from outside the breeder.

My present application is a division of my application Serial Number457,263, filed October 12th, 1908, and the lamp herein illustrated,described and claimed is particularly, though not exclusively, adaptedfor use in connection with breeders of the class described in my saidoriginal application.

Having described my invention, what I claim as new and desire to protectby Letters Patent is:

1. The combination with a lamp having a chimney, and a lamp compartmenthaving a lateral opening in its wall for the insertion of the lamp, of aheating drum having its lower portion terminating in said compartmentand provided with a depending flange adapted to partly embrace thechimney of the lamp, the said chimney also having an upwardly extendingflange adapted to partly embrace the lower portion of the drum.

2. The combination of a lamp having an oil reservoir provided with anair chamber in the upper part thereof, a lamp compartment having alateral opening in its wall for the insertion of the lamp, said chambercommunicating with the outer air and with the lamp compartment, aclosure for said lateral opening, a heating drum extending downwardlyinto the lamp compartment, and a chimney connecting said lamp and drum.

3. A lamp in combination with a heating drum having a depending flangeat its base, a lamp chimney having an upward extension adapted to partlyembrace the lower end of said drum, while its shorter portion isembraced by said depending flange, a lamp compartment, below andinclosing the lower end of the heating drum, having a lateral opening inits wall for the insertion of the lamp, and a closure for said openingcarried by the lamp.

4. In combination with a lamp having an air chamber in the upper partthereof, a chimney, a lamp compartment having a lateral opening in itswall for the insertion of the lamp, said air chamber in the lampcommunicating with the outer air and with the lamp compartment, aclosure for said lateral opening, a heating drum extending downwardlyinto said compartment and provided with a depending flange adapted topartly embrace the lamp chimney.

5. A lamp provided with an oil reservoir having an air chamber in theupper part thereof, in combination with a vertically ex tended heatingdrum having a flange depending from its base, a lamp chimney having anupper extension adapted to partly embrace the lower end of the drum,while its shorter portion is embraced by said flange, a

lamp compartment below and inclosing the lower end of the heating drumhaving a lateral opening in its wall for the insertion of the lamp, saidair chamber in the lamp communicating with the outer air and with thelamp compartment, and a, closure for said lateral opening.

6. A lamp having an oil reservoir provided with double upper wallsforming an air chamber in combination with a lamp compartment having alateral opening in its wall for the insertion of the lamp, a heatingdrum extending downwardly within said lamp compartment and provided witha depending flange at its base, a lamp chimney having an upper extensionadapted to partly embrace said drum while its shorter portion isembraced by said flange, and said air chamber having means ofcommunication with the air inside and outside of said lamp compartment.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

HAROLD A. NOURSE.

lVitnesses K. H. HANSEN, J. E. STRYKER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington,- .D. C.

